﻿namespace HelloWorldApp;
class Rectangle
{
    // 成员变量
    double length;
    double width;
    public void Acceptdetails()
    {
        length = 4.5;    
        width = 3.5;
    }
    public double GetArea()
    {
        return length * width;
    }
    public void Display()
    {
        Console.WriteLine("Length: {0}", length);
        Console.WriteLine("Width: {0}", width);
        Console.WriteLine("Area: {0}", GetArea());
    }
}
   
class ExecuteRectangle
{
    public static void Main2(string[] args)
    {
        Rectangle r = new Rectangle();
        r.Acceptdetails();
        r.Display();
        Console.ReadLine();
    }
}

